A clasp particularly for a cord or lace. The clasp can be used in connection with shoe laces or tightening cords for various garments, for example. The clasp has a male portion and a female portion having mutual connecting structures. Each of the male and female portions has a structure for connecting to an associated end of the cord/lace, and the male and female portions have complementary guiding structures so as to facilitate their engagement/disengagement.